194 • Section 8 — Electrical Systems - House Cayman 2006
Factory Default Settings
DISTRIBUTION PANEL (50 AMP)
The AC distribution panel is located in the bedroom.
The main AC panel 120 Volt circuit breakers receive power
from the transfer switch, which is powered by either shore
power or the on-board generator. Power is introduced into
the panel to the 50 Amp MAIN breaker fi rst, followed by
power being fed into the individual branch circuit breakers.
The panel label describes the breaker layout and the item,
outlet or appliance to which they pertain.
WARNING:
This panel contains high voltage which can cause serious injury or death. Before beginning
any work or testing procedures involving the electric panels, or any of the branch circuits,
be sure the motorhome is unplugged from shore power and the generator is not running.
Certain testing procedures can require the AC power to be on. Only qualified personnel or
personnel with electrical backgrounds should attempt any testing procedures.
Circuit Breaker
Branch circuit breakers supply AC power to the different items or loads. Should a breaker trip from over
current use, or a short circuit condition, the load should be tested or disconnected to determine the reason the
breaker tripped. If no cause is found, or not readily apparent, reset the breaker by toggling the breaker to the OFF
position, then back to ON. Should the breaker trip again after the load is re-applied, there may be a fault with that
particular load. DO NOT continue to reset breaker until the problem has been diagnosed and corrected.
The internal confi guration of the circuit breaker is designed to trip when excess current causes the breaker to
heat up. The trip action of the circuit breaker can occur within milliseconds due to the speed at which electricity
can travel. Breakers are designed to operate at a continuous load of 80% of the breaker’s rated capacity. For
example: A breaker with a 20 Amp rating will operate a continuous 16 Amp load. This design leaves a small
amount of working capacity within the breaker. When an inductive load is applied, such as when an electric
motor turns on, the motor starts to spin and current consumption may momentarily exceed the rated capacity of
the breaker. As the electric motor comes up to operating speed, the electric motor’s current consumption will
decrease. The AC current load then falls back into the breaker’s rated 80% set point. This electric principle should
be kept in mind when using anything other than 50 Amp shore service and using appliances with electric motors,
such as air conditioners.
Function Default
Search 5 Watts
Low Battery Cutoff 11 Volts DC
Battery Bank 400 AH
Battery Type Liquid Lead Acid
Charge Rate 80%
Contrast 75%
ENCLOSED ENERGY MANAGEMENT EQUIPMENT
060101b
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